# New- Support for Windows 10 including tablet mode- Download protection from potentially unwanted software-Suggested Tiles show sites that may be of interest, based on categories from your recent browsing history- Add URLs to a Hello conversation for additional context- New style for add-on manager based on the in-content preferences style- Smoother and more reliable CSS animations via asynchronous animations- Improved scrolling, graphics, and video playback performance with off main thread compositing (GNU/Linux)# Changed- Add-on extensions that are not signed by Mozilla will display a warning- Smoother animation and scrolling with hardware vsync (Windows only)- JPEG images use less memory when scaled and can be painted faster# HTML5- Support for new Unicode 8.0 skin tone emoji- IndexedDB transactions are now non-durable by default- Implemented AudioBufferSourceNode.detune to modulate playback rate in cents# Developer- Improved Performance tools in the developer tools- New rules view tooltip to tweak CSS Filter values- New page ruler highlighting tool that displays lightweight horizontal and vertical rules on a page- Console API messages from SharedWorker and ServiceWorker are now displayed in web console- Inspector now searches across all content frames in a page- Places Keywords API has been deprecated, update to the Asynchronous Keywords API- Removed support for binary XPCOM components in extensions, use addon SDK "system/child_process" pipe mechanism for native binaries instead# Fixed- Kannada text does not display properly in built-in pdf viewer